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Finding the Fourth Proportional to 163,574.80, 245,518.80 and 84,745.60

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Solution

The fourth proportional to 163,574.80, 245,518.80 and 84,745.60 is: 127,199.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,574.80 : 245,518.80 = 84,745.60 : x
  2. Step 2: Convert to fraction form
    163,574.80/245,518.80 = 84,745.60/x
  3. Step 3: Cross multiply
    163,574.80x = 245,518.80 × 84,745.60
  4. Step 4: Simplify right side
    163,574.80x = 20,806,638,017.28
  5. Step 5: Solve for x
    x = 20,806,638,017.28/163,574.80
  6. Step 6: Final answer
    x = 127,199.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.